Merge changes I8a2c5ffb,I2750695d

* changes:
  Fix live wallpaper not showing on lock screen after restore
  Workaround wallpaper restore race

1 files changed, 5 insertions, 3 deletions

diff --git a/packages/WallpaperBackup/src/com/android/wallpaperbackup/WallpaperBackupAgent.java b/packages/WallpaperBackup/src/com/android/wallpaperbackup/WallpaperBackupAgent.java
index ff934ef18677..4254a0ba200a 100644
--- a/packages/WallpaperBackup/src/com/android/wallpaperbackup/WallpaperBackupAgent.java
+++ b/packages/WallpaperBackup/src/com/android/wallpaperbackup/WallpaperBackupAgent.java
@@ -217,9 +217,6 @@ public class WallpaperBackupAgent extends BackupAgent {
         final int sysWhich = FLAG_SYSTEM | (lockImageStage.exists() ? 0 : FLAG_LOCK);
 
         try {
-            // First off, revert to the factory state
-            mWm.clear(FLAG_SYSTEM | FLAG_LOCK);
-
             // It is valid for the imagery to be absent; it means that we were not permitted
             // to back up the original image on the source device, or there was no user-supplied
             // wallpaper image present.
@@ -233,6 +230,11 @@ public class WallpaperBackupAgent extends BackupAgent {
                     Slog.i(TAG, "Using wallpaper service " + wpService);
                 }
                 mWm.setWallpaperComponent(wpService, UserHandle.USER_SYSTEM);
+                if (!lockImageStage.exists()) {
+                    // We have a live wallpaper and no static lock image,
+                    // allow live wallpaper to show "through" on lock screen.
+                    mWm.clear(FLAG_LOCK);
+                }
             } else {
                 if (DEBUG) {
                     Slog.v(TAG, "Can't use wallpaper service " + wpService);